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Static and dynamic magnetic properties of the spin- 12 inequilateral diamond-chain compounds A3Cu3AlO2(SO4)4(A=K,Rb,Cs)

Katsuhiro Morita, Masayoshi Fujihala, Hiroko Koorikawa, Takanori Sugimoto, Shigetoshi Sota, Setsuo Mitsuda, Takami Tohyama
2017 Physical review B  

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2017 pre-print arXiv:1701.02198v2 fatcat:hzwqcroutvfsldx6ki33oinrse

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2017 pre-print
arXiv:1701.02198v1 fatcat:pq5qycirnzgrvom5loifmcxfby
2017 accepted
arXiv:1701.02198v3 fatcat:ty7x5nonjjgvji5oyrbzkoqs4m
Spin-1/2 compounds A3Cu3AlO2(SO4)4 (A=K, Rb, and Cs) have one-dimensional (1D) inequilateral diamond chains. We analyze the temperature dependence of the magnetic susceptibility and determine the magnetic exchange interactions. In contrast to the azurite, a dimer is formed on one of the sides of the diamond. From numerical analyses of the proposed model, we find that the dimer together with a nearly isolated 1D Heisenberg chain characterizes magnetic properties including magnetization curve and
more » ... magnetic excitations. This implies that a dimer-monomer composite chain without frustration is a good starting point for describing these compounds.
doi:10.1103/physrevb.95.184412 fatcat:xzavwzcbargyfe74e3gzqqi75a
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Katsuhiro Morita, Masayoshi Fujihala, Hiroko Koorikawa, Takanori Sugimoto, Shigetoshi Sota, Setsuo Mitsuda, Takami Tohyama. "Static and dynamic magnetic properties of the spin- 12 inequilateral diamond-chain compounds A3Cu3AlO2(SO4)4(A=K,Rb,Cs)." Physical review B 95.18 (2017)